六年级科学单元四

什么是生物之间的相互关系？

• 生物之间的竞争关系

• 动物之间的共生关系

• 动物之间的竞争关系和共生关系

• 生物之间的竞争关系和共生关系

上图显示一种动物。以下哪种动物的生活方式与它相同？

• 火烈鸟

• 蟒蛇

• 啄木鸟

• 松鼠

动物P是独居动物。它只有在交配季节才会与配偶在一起。

哪项最有可能是动物P？

• 大象

• 猴子

• 乌鸦

• 老虎

两种动物共同生活的情况下，双方都获得好处。

下列哪些动物不符合这个说明？

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上图显示动物已经面临绝种.

Diagram above shows an animal species which is already extinct.

为什么这动物会面临绝活？

Why is this animal extinct?

• 遭人类大量捕杀已获取其肉和皮

  Hunted by humans for their skin and meat

• 成为其他动物的食物

  Hunted by other animals for food

• 动物互相残杀而绝种

  Fought among themselves until they became extinct

• 遭天灾如大水灾威胁

  Destroyed by natural disaster such as big floods

下面哪项不是濒临绝种的植物？

Which of the following plants is not endangered plant species?

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以下哪项动物已经面临绝种了？

Which of the following animals is already extinct?

• 犀鸟 Hornbill

• 熊猫 Panda

• 拟斑马 Quagga

• 人猿 Orang utan

下面哪项是濒临绝种的动物？

Which of the following animals is endangered animal?

• 渡渡鸟 Dodo bird

• 猛犸 Mammoth

• 儒艮 Dugong

• 恐龙 Dinosaur

上图显示猪笼草。 Diagram above shows a pitcher plant,

哪项因素使到猪笼草面对濒临绝种？

What is the factor that causes the pitcher plant to be at risk of extinction ?

• 旱灾 Drought

• 空气污染 Air pollution

• 破坏栖息地 Destruction of habitat

• 植物的竞争 Competition among plants

哪项显示不是威胁动物和植物濒临绝种的因素？

Which of the following is not a factor that threatens animals and plants?

• 毫无节制地伐木 Uncontrolled logging activities

• 废油倒入海里 Oil spills in the ocean

• 天灾如水灾 Natural disaster suchj as floods

• 动物之间互相残杀 Animals hunt other animals for foods